Recommendations for pharmacotherapy for chronic insomnia disorder in adults:
- To decide whether to add pharmacological therapy in adults with chronic insomnia disorder who remain non-responsive to cognitive behavioural therapy for insomnia (CBT-I) alone, a shared decision-making approach should be used to discuss the benefits, harms, and costs of short-term medication use. Improved sleep outcomes, including sleep onset latency and total sleep time, improved global outcomes in the general population and older adults are the advantages of pharmacotherapy.[1]
- The U.S. Food and Drug Administration (FDA) approved several drugs for insomnia for short-term use (4-5 weeks), and patients should not continue using the drugs for extended periods. The patient should resume using the tools acquired during CBT-I following drug treatment. If the remission does not occur within 7-10 days of treatment, patients should be re-evaluated. Before continuing with drugs, secondary causes of insomnia (e.g., depression, substance misuse, dyspnoea, or restless legs syndrome) should be evaluated.
- Adults should be treated with Suvorexant and Doxepin for sleep maintenance insomnia.
- Eszopiclone, Zolpidem, and Temazepam (15 mg) should be used to treat sleep onset and sleep maintenance insomnia.
- Sleep onset insomnia should be treated with Zaleplon, Triazolam (0.25 mg), and Ramelteon.[2]
Drugs used for the treatment of chronic insomnia:
Drug name | Dosage (mg) |
---|---|
Nonbenzodiazepine sedative ‘Z-drug’ hypnotics | |
Eszopiclone | 1-3 |
Zaleplon | 5-10 |
Zolpidem | 5-10 |
Zolpidem, continuous release | 6.25-12.5 |
Zolpidem, sublingual | 1.75/3.5 |
Zolpidem, oral spray | 5-10 |
Melatonin agonists | |
Melatonin | 1 |
Ramelteon | 8 |
Antidepressants | |
Amitriptyline (Off-label) | 25-150 |
Doxepin | 3-6 |
Mirtazapine (Off-label) | 7.5-15 |
Nortriptyline | 25-150 |
Trazodone (Off-label) | 50-100 |
Orexin receptor antagonist | |
Suvorexant (not recommended in patients with severe hepatic impairment). | 5-20 |
Lemborexant (not recommended in patients with severe hepatic impairment). | 5, 10 |
Daridorexant | 10, 25, 50 |
Antihistamines | |
Diphenhydramine (Off-label) | 25-50 |
Doxylamine (Off-label) | 25-50 |
Hydroxyzine | 50-100 |
Antipsychotics | |
Olanzapine | 2.5-20 |
Quetiapine | 50-400 |
Risperidone | 0.25-6 |
Anticonvulsants | |
Gabapentin | 300-600 |
Pregabalin | 50-3003 |